<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<p>单文件上传</p>
<form method="POST" enctype="multipart/form-data" action="http://localhost:8080/singleFile" >
    文件：<input type="file" name="file"/>
    <input type="submit"/>
</form>
<hr/>
</body>
</html>